A116104
Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 4.
Original entry on oeis.org
65, 6653, 9605, 218413, 283720, 996005, 58446925, 99960005, 6086712229, 7385370133, 8478948853, 9999600005, 120178240093, 161171620229, 358247912200, 426843573160, 893417179213, 999996000005, 23376713203604
Offset: 1
9999600005//9999599997 = 9999799999 * 9999800003, where // denotes concatenation.
A116095
Numbers k such that k concatenated with k-9 gives the product of two numbers which differ by 2.
Original entry on oeis.org
2137, 2892, 6369, 12217, 21964, 28233, 42312, 4978977, 9571608, 18642249, 32288908, 96039609, 200037461217, 305526508312, 570666416233, 638912248204, 996003996009, 1846991026584, 3251664327537, 4859838227992
Offset: 1
96039609//96039600 = 97999800 * 97999802, where // denotes
concatenation.
A116097
Numbers k such that k concatenated with k-9 gives the product of two numbers which differ by 5.
Original entry on oeis.org
92185, 1453156572932210152879253333913, 3829098407015032018435618903285, 1017438814759112270449904796121753809
Offset: 1
92185//92176 = 96011 * 96016, where // denotes concatenation.
A116227
n times n+4 gives the concatenation of two numbers m and m-9.
Original entry on oeis.org
44, 53, 949949, 979652, 7771781677, 7900890078, 9920892098, 9949999499, 38773083432315, 41534158410840, 47433813119406, 52566186880591, 58465841589157, 61226916567682, 72258945037433, 86156896546723
Offset: 1
Showing 1-4 of 4 results.
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